???? ?? ?????? ??? { ??? ???? ?????? ???????? ????? ???? ?? ???? ???????? ?????? ?????? ??????. ???? ?? ?????? ????? ?? { ??? ???? ?????? ??????? ????? ??????? . ????? ???? ?????? ??? ???? ?????? ??? ???? ????? ???? ????? ???? ????? ??? ???? ?? { ??? ???? ?????? ???????. ???? ??? ???? ????? ??? ???? ?????? ????? ??? ?? ??? ???? ??????